Term
*how do hormones reach their target organs?
*what type of organ produces hormones?
*how are impulses passed along the nervous system? |
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Definition
* transported in the blood stream
* A gland
* electrical in neurones, chemical across a synapse |
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Term
| steps involved in reflex action |
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Definition
* a receptor detects a stimulus
*a sensory neurone transmits the impulse
*a relay neurone passes the impulse on
*a motor neurone is stimulated
*the impulse is sent to effector(muscle,gland)
*action is taken |
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Term
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Definition
*FSH is made by pituitary gland and causes egg to mature and oestrogen to be produced.
*oestrogen is produced in ovaries and stops further production of FSH. It stimulates LH and womb lining to develop to receive egg
*LH made in pituitary gland and stimulates mature egg to be released |
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Term
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Definition
*takes 28 days ovulation on day 14.
*controlled by 3 hormones |
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Term
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Definition
*contains oestrogen and prevents pregnancy by preventing the production of FSH so no eggs mature.
*Women can be given FSH for fertility treatment to help produce eggs and increase pregnancy |
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Term
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Definition
*water leaves body when we breathe out and sweat. Excess lost in urine. Ions also lost in urine
*must keep temperature constant so enzymes work properly
*sugar in blood is source for cells and must be controlled |
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